@Malikka 19 October 2021 more from that month

A photo of another interesting find that has added to my collection is the abacus. With the help of them, the numbers were counted by moving the bones from one side to the other, it was a whole science and who did not know how to use them, it was not clear how it was possible to count so quickly with the help of counts. In 1990, they were in every store in our country, and with the proliferation of cash registers and cash registers that were able to count, they disappeared from view. Now, almost every device has a calculator and it is not difficult to count large numbers. Unless, of course, you prefer to count numbers in your head. And this is a good memory workout.